Buy Best CHEM 120 Unit 1 Quiz Collection
CHEM 120 Unit 1 Quiz (Jan 2021)
- Question: What is the mass in kilograms of a copper pipe that weighs 12.5 pounds? (1 lb = 453.6 g)?
- Question: Select all of the following that is equal to 0.4 km
- Question: A bottle of Gatorade has a volume of 591 mL. What is this volume in L?
- Question: If the density of a certain alcohol is 0.785 g/mL, what volume of the alcohol would have a mass of 75.0 g?
- Question: An ice cube will sink in hexane, but float in water. Place these three
- Question: The nucleus of a particular atom contains 25 protons. The chemical symbol of this atom must be:
- Question: The number of protons and neutrons in an atom of bromine-81 is:
- Question: What is the mass number of an element that contains 4 protons and 5 neutrons?
- Question: The figure shows a molecular-level diagram of the chemical reaction between hydrogen and nitrogen to form ammonia (white atoms are H atoms and blue atoms are N atoms). What is wrong with this diagram
- Question: Which of the following is the same for isotopes of an element?
- Question: You are a medical professional. One winter, a patient who is allergic to pollen comes in complaining of allergies. Since it is winter, you expect that this patient has not been exposed to pollen recently and you hypothesize that this patient is allergic to animal dander.
Design an experiment to test this hypothesis (assume you have access to any material you require). Include your control(s) (1 pt) and your experimental design (3 pts). Predict the experimental results that would support your hypothesis. (1 pt).
CHEM 120 Unit 1 Quiz (Dec 2020)
- Question: You have been growing the same variety of corn for over 5 years. In the past two years, you have noticed that the yield has decreased by 10% each year. You grow corn on 10 acres of land and your yield should be 1000 bushels per acre. Growing conditions have been consistent for the past 5 years. You want to identify another variety of corn that will produce 1,000 bushels per acre. You currently grow Variety ZQB. You want to test two new varieties, CAQ and TWX. You hypothesize that an experiment to test this hypothesis includes your control(s) and your experiment design. Describe the experimental results that would support your results.
- Question: How many liters are in 0.75 gallons?
- Question: How many milligrams are in 5 ounces?
- Question: How many milliliters are in 2.7 quarts?
- Question: What is the mass of 50.0 mL of an intravenous glucose solution with a density of 1.15 g/mL?
- Question: What is the mass of 20mL of methanol, which has a density of 0.792g/mL?
- Question: Determine the number of protons, neutrons, and electrons for the element Calcium. The mass number for the isotope of this element is 42.
- Question: Consider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is.
- Question: Heptane is always composed of 84% carbon and 16% hydrogen. This illustrates the law of _______.
- Question: Which subatomic particles have approximately the same mass?
- Question: Which type of radioactivity has a negative charge?
- Question: Which type of radioactivity has a positive charge?
- Question: The proton has a larger mass ________.
- Question: A neutral atom has the same number of ________.
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